Jointing and sanding machine



7 Sheets-Sheet 1. W. P., LARISH. JOINTING AND sANDINe MACHINE.

Patented Oct. 18, 1892.

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(No Model.) 7 Sheets-Sheet 2. W. F. LARISH. JOINTING AND SANDING MACHINE.

No. 484,639. Patented Oct. 18, 1892.

(No Modem 7 sheets-sheet 3.

W. F. LARISH.

JOINTING AND SANDING MACHINE. No. 484,639. 'Patented Oct. 18,1892.

(No Model.) 7 Sheets-Sheet 4.

W. F. LARISH. JOINTING AND SANDING MACHINE.

No. 484,639. A Patented 001;. 18, 1892.

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JOINTING AND SANDING MACHINE.

Pteted Oct. 18, 1892.

(No Model.) 7 Sheets-Sheet 6.

W. F. LARISH. JOINTINQAND SANDINQr MACHINE. No. 484,639. Patented Oct. 18, 1892.

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(No Model.) 7 Sheets-Sheet 7.

W. F. LARISH. JDINTING AND SANDING MACHINE.

No. 484,639. Patented oct. 1a, 1892.

UNITED STATES PATENT OFFICE".

WILBUR F. LARISH, OF OSHKOSH, WISCONSIN.

JOINTING AND SANDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 484,639, dated October 18, 1892.

Application filed April 22, 1891.

To all whom it may concern:

Be it known that I, WILBUR F. LARIsH, a citizen of the United States, residing at Oshkosh, in the county of Winnebago and State of Wisconsin, have invented certain new and useful Improvements in Jointing and Sanding Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will .enable others skilled in the art to which it appertains to make and use the same. Y

My invention is directed to the production of a machine for sanding and jointing, especially adapted for use in the manufacture of blinds, sash, &c., in which the operations of shaping and finishing the various surfaces of the rails shall be performed with the greatest possible rapidity and completeness, my invention being directed to the simplification of the various parts of the machine, with a View of securing cheapness and durability of construction, and to such arrangement of the operating devices of the apparatus as will enable as many surfaces as possible of the article being manufactured to be shaped and finished at a single passage of the article through the machine. These being the general aims of my improvement, it consists in the parts and combination thereof hereinafter more particularly set forth and claimed.

In order to enable the invention to be more clearly understood, I have shown in the accompanying drawings means for carrying the same into practical effect without, however, intending to limit myself in the application of my invention to the particular construction, which,for the sake of illustration, I have shown and am about to describe.

In said drawings, Figure 1 is a side elevation of a sanding and jointing machine embodying my invention. Fig. 2 is a similar elevation from the opposite side of the machine. Fig. 3 is an elevation at right angles to Fig. 2, showing a portion of the devices illustrated in the latter figure. Fig. 4 is a plan view, partly in section, of one side or half of the machine. Fig. Lla is a similar view of the other half of the machine. Fig. 4b is a sectional view on line 4b 4", Fig. 4. Fig. 5 is an end View of one of the sanding-drums. Fig. v6 is a front view of its frame. Fig. 7 is aview .ofthe longitudinal clamp-operating Serial No. 389,988. (No model.)

' rod of the drum. Fig. 8 is a side or face View of the combined jointing-saw and sand-head. Fig. 9 is a sectional view of the same. Figs. 10, ll, and l2 are detail views of parts of the machine hereinafter more particularly referred to and described.

Referring to the drawings, A indicates the main frame of the machine, provided with suitable brackets and bearings for the various shafts and moving parts.

The rails are held and fed to the operating devices by the following means: B B B2 are the upper feed-rolls supported in bearings a in the frame A, and below them are similarly mounted the bottom feed-rolls B3 B4 B5. The projecting journals of the lower feed-rolls are provided at one side of the machine, Fig. 1, with bevel gear wheels b b b2, engaged by bevel-pinions c c o2. The latter are fixed upon a longitudinal shaft O, mounted in suitable bearings C and extendinginadirection parallel with the side ot' the machine. By this shaft all the lower feed-rolls are simultaneously rotated in the same direction. The bevel-gear b is provided with a spur-toothed crown h6, which is engaged by a spur-pinion b", mounted on a transverse shaft B7, which extends to the opposite side of the machine. This shaft is also provided with a spur-gear bs, engaged by a pinion b9 on the pulley-shaft B6. The pulley B8 of this shaft'receives motion from a belt D, running from any suitable motor, such as the pulley D. r[`he end of the shaft B7 at the other side of the machine, Fig. 2, is provided with a spur-pinion E, which operates, through an intermediate gear e, the spur-crown e of one of the bevel-gears b3 of the top feed-roll. A shaft O2, provided with bevel-pinions c3 c4 c5, engaging the bevel-gears b3 b4 b5 of the top feed-rolls, transmits motion from the gear b3 to all of the top feed-rolls, so as to rotate them simultaneously in the same direction, but in an opposite direction to that of the movement of the lower feed-rolls. The proper and uniform motion of all the feedrolls is thus secured in a very simple and effectual manner and with the minimum amount of gearing and shaftiug. F indicates two steady rolls of small diameter situated between the feed-rolls B B4 and the sandingy IOO projecting journals are provided with pulleys' h, from which belts h are run to any suitable.

source of power-such, for instaneas the pulleys D2 D2by which the sand-drumsare driven at the necessary degree o speed; In order that the action of the said drums may be more efficient, I have provided them with an improved reciprocating means, whereby while their rotation is not interfered with they are moved longitudinally of their axesv y from side to side of the machine.

Referring more particularly to Figs. 2, 3,. 11, and 12, H2 indicates the journal of one of' the sand-drums, which is provided with a screw-thread, Fig; 1.2, and with nuts I` I.en gaging said thread. These nuts are preferably roundl and provided with openings 71 adapted to be engaged by a suitable Spanner for the purpose of adjusting the nuts upon@ theshaft H2. One or more jam-nuts I2rnay also be provided. J is a bearing encirclingl the-shaft H2 between the nuts I l', whichllatter fit neatly against the faces. of the said: bearing. It will be seen that any motion ot?l theI bearingy J in adirection parallel withy the axis of the sand-drum shaft` will impart at similar motion tothe drum. without intel'- fering with its rotary movement. It will? also` be seen: that the position of the drum: relative to the bearing` J may be adjusted by turning the nuts: I` I. is imparted. to the bearing J. by means of a. yok-e JJ, which is joined to thebearing by meansof pivot or trunnionvboltsj, andwhiclr is provided at its-,outer end with a bearing-or. sleeve J2, encirclingy an eccentric or camK, Figs. 11 and12. This cam-is formed` with on attached to a verticall shaft K', whichs is mountedin bearingsc, supported by brackets k from the frame A. The smalle pulley K2 upon the shaftK receives mot-ionil trom-4 a belt K2, which is driven in any suitable. manner, preferably fronra pulley K4 on. theifeedshat B7. The description thusrgivenot the meansfor reciprocating one of, the` sanddrums will apply to both;.

It. will` be.- seenA that the reciprocating mechanismf abovedescribed is consistent with the necessary vertical adjustment of the` sanddrums;v 'llo thisend. the sleeved? and eccentric K. haveone orboth, suqhvertical. exten,- sion asto perinitof considerable verticaly adv justment of the sleeve withoutdisengaging the latter fromthe=eccentric.'- The bearings 71.2 for the sand-drum journals are mounted or formed, respectively, in. upper and lower slides LL, vertically movable'in. gnideways Z, formed' in the frame'I A. 'Dheseslides are provided 'with screw-threaded lugs or bear- The described" motion! ings Z', which are engaged byscrewsshafts L2, which are mounted upon the frame A in such manner as to be rotary but longitudinally immovable, and are further provided with miter-gears Z2. The latter are engaged by corresponding gears Z3, mounted on throughshafts L3. Similar devices are provided at the other side of the machine, Fig. l, for operating the sand-drum bearing-slides there situated, with the addition of hand-wheels L4, by which the shafts, L3 can be rotated. It ywillq be seen', therefore, that by one of these ,hand-wheels the bearings at both ends of the lower sand-drum may be simultaneously adj usted and that by the other hand-wheel the upper sand-drum may be adjusted independently of the lower drum.

Referring now to-the detail construction of the sandldrumsand` in connection therewith ,to Figs. 5, 6, and 7, M indicates thelieads of the druni,..provided with suitable central hubs, jby which1 they are mounted upon the shaft H2. m indicates the edge rails secured in l place-upon the drum by screws m', over which the sandpaper is drawn. A space sleft between these rails, through which the ends of :the paper pass and enter betweenthe clamping-bars M', which extend longitudinally of `the sand-drumV and pass through openings which are provided for them in the heads M. -At each end of the drum. these bars-are attached" to and supported, by springs N of the peculiar shape show-n best in Fig. 5. The vfree ends of each spring cross each other and lare adapted to be forced; apart by a wedgeshapednut O,whichvis engaged by alongitudi- I nallscrew-threadedrod 0.',Fig. 7, thus causing the barsM to seize the ends of the sandpaper. The inner faces of. thebars are preferably. cornugated, as sho'wnn order to increase l the security of their hold. At each side the ,spring is provided with camfshaped portions n, adapted to bear against pins n', secured" in the head of the drum. At its closed end the springis formed with a slot n2,engaged'by a cam or eccentric nwhich; is mounted upon a through-shaft N. vBy turning the latter shaft l the spring is moved bodily towardthe rails m, and at they same time,.by the engagemenof the portibnstnwitl the pins n,.thelegsof the .spring are forced inward andi: t-he barsM separated. Ifnow the paper be placedupon the drum and its ends introducedy between the rails` m and bars M'said' ends may be firmly graspedby turning the rodO 'and causing thewedge-shaped nut-O to, move longi- 5 tudinallyy between the-legs` oi'A the spring.; By ,new turning the, shaft N" the action 'of the i eccentricfns'in the slot n2 will draw the-spring bodily away from. the rails m and stretch the papertightly over thesurface of the drum. u n.4 is. a stopfpimwhjch arrests the move- ,ment of the sphing at the proper time. A similar spring to thatabove. describedis proividedat the opposite end of the sanddrum, Fand.' so many intermediate springsas-.areren- 'dered necessary by the length of the drum,

IIO

and the rod O and shaft N are provided, respectively, with a nut and cam for similarly operating upon such second spring or springs. I prefer, also, to employ two intermediate springs N between the heads of the drum.

In order to enable the rail-saw to finish one of the surfaces of the rail at the time of the sawing operation, I construct the saw substantially as shown in Figs. 8 and 9, with an opening 2, which is preferably circular or continuous. P is a ange screwed or otherwise suitably secured to the saw-arbor P and provided with a wooden face-plate P2, secured to the flange by screws p. P3 is an internallyscrew-threaded collar or ring engaging a corresponding external thread upon the periphery of the ring P and extending to a plane about flush with the face of the said Wooden plate. On this latter plane the ring is provided with a circumferential rabbet p', in which tits and is suitably secured the annular saw p3. The sandpaper is shown at Q and is in the form of a disk covering the wooden face-plate P2 and having its edge secured between the same and the inner surface of the ring P3. It will be readily seen that the paper may be secured or released by turning the ring upon the screw-thread by which it engages the flange P.

When the parts are in proper position for operation, the sandpaper Q is not quite flush with the surface of the saw, but projects slightly therefrom and will operate upon the material as it is sawed in an obvious manner. The saw-arbor is mounted in inner and outer bearings 193194, carried by the frame A, and by a bracket p5, mounted thereon, and is driven by a pulley p6, belt p7, and power-pulley D4.

In order to insure that the sash shall be fed square through the machine, the feed-rolls are provided at one end with loose collars S, which have beveled or conical surfaces adapted to tit the check-rail. These collars may therefore have a different speed from the main body of the roll, and there will be no tendency to twist the sash out of a true line. The collars are confined by nuts T, screwed upon suitable threads provided upon the journals of the rolls.

A portion of the sash is shown at a: in Fig.

l0 in dot-ted lines, the check-rail being repre-- sented as engaged by the roller S.

Having thus described my invention, what I claim is 1. In a jointing and vsanding machine, the combination, with a sanding device for one surface of the material, such as a sandingdrum, of a circular jointing-saw provided with a sanding head or disk and situated in a plane at an angle to that in which the said sanding device operates, substantially as set forth. v

2. In a jointingand sanding machine, the combination, with the jointing-saw having a sanding disk or head, of the feed-rolls, the upper sand-drum H, the lower sand-drum H shafts parallel with each other carrying said operating parts, and the feed mechanism connecting and actuating said shafts, substan` tially as set forth.

3. In a jointing and sanding machine, the combination, with the circular jointing-saw having an opening for the sanding material, extending continuously in the direction of rotation of the saw, and a backing-plate for the said material, of the feed-rolls, the upper sand-drum H, the lower sand-drum H', shafts parallel with each other, carrying said operating parts, and the feed mechanism connecting and actuating said shafts, substantially as set forth.

4:. In a jointing and sanding machine, the combination of the circular saw having an opening extending continuously in the direction of rotation of the saw, adapted to receive the edge of a sanding material, and a clamp for the latter, substantially as set forth.

5. In a jointing and sanding machine, the combination, with the jointing-saw and sanding devices, of the feed-rolls having the loose collars S, substantially as set forth.

6. In a jointing and sanding machine, the combination, with the j ointing-saw, of the upper and lower sanding-drums, the feed-rolls, the longitudinal parallel shafts C C2, situated at right angles to theaXiS of the rolls and on opposite sides of the machine, one for the upper and one for the lower set of rolls, beveled gears connecting said shafts with the rolls, and a through-shaft connecting said longitudinal shafts, substantially as set forth.

In testimony whereof I affix my signature in thepresence of two witnesses.

wiLBUR F. LARIsH.

Witnesses:

JOHN GEIGER, H. D. WILBOR.

TOO 

